Ruta: support usage of uimaFIT AEs with manditory parameters without default values

Details

Description

Ruta: support usage of uimaFIT AEs with manditory parameters without default values.

This was reported by a user and is an old problem. Some information:

The problem here is that the uimaFIT analysis engine is already
initialized when the ruta analysis engine initializes its main script,
normally during initialize(). This means long before CONFIGURE is maybe
called. The configuration parameter is manditory, so that the initialize
already fails.